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| Grizel, Henri. |
| The study concerns two previously unseen Protozoa, Marteilia refringens and Bonamia ostreae, responsible for epizootics in the flat oyster, Ostrea edulis L. The epizootiological aspect, the impact of diseases on Breton oyster farming and the research for appropriate prophylaxes is addressed. The morphology, the ultrastructure and certain phases of the growth cycle are described for the two parasites, as well as their cyto- and histopathogenic effects. The epizootiology explains the evolution of the diseases in space and time, their conditions for propagating, the sensitivity of the parasites and the receptivity of various test hosts. A summary analysis of Breton oyster farming before and during the epizootic is done. It makes it possible to judge the... |
| Tipo: Text |
Palavras-chave: Impact; Prophylaxies; Epizootiologie; Bonamia ostreae; Martelia refrengens; Protozoaires; Epizooties; Ostrea edulis; Huître plate; Ostréiculture; Bretagne. |
| Ano: 1985 |
URL: http://archimer.ifremer.fr/doc/1985/these-2581.pdf |
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| Raimbault, René. |
| Until now, French Mediterranean shellfish culture was only carried out at relatively sheltered sites: some salted lagoons in Languedoc-Roussillon and Corsica and in the roadsted of Toulon The shellfish culture area of the Thau lagoon spreads out over about 1,200 hectares, that of Leucate over 140 hectares; in Corsica, shellfish farming is carried out on small rafts distributed among the different lagoons (around 80 in Diana and 50 in Urbino). In the roadsted of Toulon, most of the farms are about to close down. According to official figures, the Mediterranean production amounts to about 10,000 tonnes. In reality, the Thau lagoon production alone amounts to, at least, double this tonnage (HAMON et TOURNIER, 1981). It corresponds to at least 90 % of the... |
| Tipo: Text |
Palavras-chave: France; Méditerrannée; Développement; Perspectives; Nuisances; Epizooties; Conchyliculture; Elevage. |
| Ano: 1983 |
URL: http://archimer.ifremer.fr/doc/1983/acte-6180.PDF |
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